Question about ViewSonic VX2433WM 24 inch LCD Monitor

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Bad power board

I would get a whining/screeching noise coming from the back of the monitor for about 10 seconds and then the screen would cut out. I thought it might be bad caps and replaced the electrolytics. Firing the monitor back up the same problem occurred. Pulling the covers and shields off and running the monitor bare showed that the noise was coming from the xfmr marked as T501. Is the problem with this xfmr or is something else causing it to make that noise. I can purchase a replacement power board for $30 but would rather try my hand at fixing the board and purchasing a LED monitor.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: Viewsonic VX900 Lcd Monitor Bad Power Supply

Go to for complete procedure http://www.lcdpart.com/images/ViewSonic_VX900.pdf

Posted on Oct 10, 2007

bammbammfran
  • 159 Answers

SOURCE: Viewsonic VX910 powers on, screen displays for 1 second then turns off

Blinking on and off is not always a capacitor issue, it is usually caused by faulty transistors at the high output transformers that light the backlights. Crappy board design ! But fixable in most cases.

Posted on Aug 10, 2008

  • 2 Answers

SOURCE: screen won't stay on

I had the same problem and called Viewsonic (www.viewsonic.com). Bought mine in July '06 and to my surprise it's still under warranty. The warranty goes for 3 years so even though shipping is my cost, they'll fix or replace it with a same/similar model.

Posted on Jan 05, 2009

  • 144 Answers

SOURCE: Viewsonic VP2130b monitor no post black screen

Here is a suggestion:
By looking at the power board you should see the light, and where it is connected to, so diagnose the circut from that point foreward eliminating any potential of damging the board. try any cables or ribbons.

Posted on Jun 20, 2009

  • 1684 Answers

SOURCE: ViewSonic Vx924 No power

Hello,

If youcan take a picture or two of the boards in your system as close and clear as you can and go to our web page and email them to me I will check and see if we can help you find the problem.

Buddy
Corporate Computer
www.ccl-la.com

Posted on Aug 14, 2009

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Hello,

The picture board on your monitor is bad, since it goes off after few seconds and the power led or button is on, it means the picture board of your monitor has developed fault.

The best thing for you to do now is to take the monitor to a local repairer within your vicinity to help with the replacement of the picture board because the fault is not something you can fix yourself, in order not to complicate issues.

Take care.

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